Dual-microphone headset and noise reduction processing method for audio signal in call
AssigneeHuawei Device Co., Ltd.
InventorHaiquan Yang
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Abstract
The present invention discloses a headset, a terminal, and a method for processing an audio signal based on the headset and the terminal. The method for processing an audio signal includes: acquiring, by a first microphone of a headset in a call process, a first audio signal including a call voice and background noise, and acquiring, by a second microphone of the headset in the call process, a second audio signal including the background noise; and transmitting, by using an external plug of the headset, the first audio signal and the second audio signal to a noise reduction chip built in a terminal, so that the noise reduction chip performs noise reduction processing on the first audio signal according to the second audio signal.
Claims20
A method for processing an audio signal of a headset, wherein the headset comprises a first microphone and a second microphone, the method comprising:
- acquiring, by the first microphone, a first audio signal comprising a call voice and background noise;
- acquiring, by the second microphone, a second audio signal comprising the background noise;
- and
- transmitting the first audio signal and the second audio signal to an external terminal that performs noise reduction processing on the first audio signal according to the background noise in the second audio signal.
A headset, comprising:
- a first microphone that is configured to acquire a first audio signal comprising a call voice and background noise;
- a second microphone that is configured to acquire a second audio signal comprising the background noise;
- an external plug configured to connect to an external terminal;
- and
- a signal output transmitter, configured to transmit the first audio signal and the second audio signal to the external terminal that performs noise reduction processing on the first audio signal according to the background noise in the second audio signal.
A method for processing an audio signal of a terminal, the method comprising:
- receiving, by the terminal, an input signal transmitted by a headset, wherein the headset comprises a first microphone and a second microphone, the input signal comprises a first audio signal and a second audio signal, the first audio signal is acquired by the first microphone, the first audio signal comprises a call voice and background noise, a second audio signal is acquired by the second microphone and the second audio signal comprises the background noise;
- acquiring the first audio signal and the second audio signal according to the input signal;
- and
- performing noise reduction processing on the first audio signal according to the background noise in the second audio signal.
A terminal, wherein the terminal comprises a built-in noise reduction chip, the terminal configured to connect to a headset external to the terminal, the headset comprises a first microphone and a second microphone, and the terminal further comprises:
- a signal receiver, configured to receive an input signal transmitted by the headset, wherein the input signal comprises a first audio signal and a second audio signal, the first audio signal is acquired by the first microphone in a call process, the first audio signal comprises a call voice and background noise, a second audio signal is acquired by the second microphone in the call process and the second audio signal comprises the background noise;
- a signal acquirer, configured to acquire the first audio signal and the second audio signal according to the input signal;
- and
- a signal processor, configured to control the noise reduction chip to perform noise reduction processing on the first audio signal according to the background noise in the second audio signal.
Dependencies are inferred from the claim text.